352 ANNOTATED LIST OF PERSONS 



the cyanides and benzol compounds, isolated aluminium, beryllium 

 and yttrium. Made many contributions to science. Taught many 

 students. For portraits see Pop. Sci. Monthly, Aug., 1880, and Werck- 

 meister, 1899, vol. 3, pi. 287. 



Yersin, Alexandra (1863 ). French physician and pathologist. 



Collaborator of Roux in the Pasteur Institute. Studied in the French 

 colonies where he discovered the plague bacillus independently of 

 Kitasato. 



Yourievitch, Serge ( ). Attache of the Russian legation in 



Paris. Eulogist of Duclaux "Bull, de 1'Inst. general psychologique," 

 4 annee, No. 4, 1904. 



